List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=5752
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-players_start&page=5751",
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            "description": "リーグ開始時に参加されているメンバーでの総あたり戦になります。(レーティングによる自動ハンデ付き)\n\nIt will be a round-robin tournament with automatic handicapping based on ratings.",
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            "handicap": -1,
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                "name": "Yushima Go Cafe (湯島囲碁喫茶)",
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            "description": "このトーナメントは下記の方が参加予定です。空きがないため参加者となっていない方は参加することができません。\n\nThis tournament have already been “reserved” for members listed below. If you are not one among them, don’t click “Join this tournament!”. (There is no vacancy.)\n\nRozetさん、kiku11さん、K___k_F_k__さん、EisukeGoさん、かきもとさん、shaonaiさん、BabbLeahさん(2/7追加)",
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            "description": "KG1848さん、ほんばさん、ken12345さん、smith0108さん、tomi-nchi-goさん",
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            "name": "just a tournament",
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                "username": "andyzhou",
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                "id": 99,
                "name": "kids and teens Room",
                "summary": "where kids go to have fun and chat XD ",
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                "name": "Shogi 81Dojo",
                "summary": "Group for Shogi players on 81Dojo",
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                "summary": "ONLY FOR MY FRIENDS! SO FRIEND ME NOW!",
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            "name": "SS GO Tournament with gandicup",
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                "name": "GO group",
                "summary": "This is the go group.",
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